Preparation and surface properties of polyrotaxane-containing tri-block copolymers as a design for dynamic biomaterials surfaces

► A tri-block copolymer containing polyrotaxane segment was synthesized. ► The surface was found to show pronounced dynamic wettability and molecular mobility. ► These results indicated the construction of dynamic surface by the block copolymer. ► It would result from a polyrotaxane loop-like structure at the outermost surface. ► Excellent protein adsorption repellency was achieved on the prepared dynamic surface.